Public power source system

To provide a public power supply system by which it is possible to use power in a public location both conveniently and safely without erroneous operations. A outlet 11, to which power is supplied from a distribution line 13, is installed in advance in a predetermined public location and a communication terminal 32 requesting the outlet 11 to supply power and a center server 31 are connected in advance via an Internet 33 and when there is a request to the outlet 11 to supply power, the center server 31 outputs a current supply command to a current control unit 14 via a communication network (Internet 24 or telephone network 25) and the current control unit 14 permits supply of a current to be supplied to the outlet 11 when there is a current supply command and there is information to allow supply of a current to the outlet generated using a remote control prevention device installed near the outlet.